The first Grand Slam tennis tournament of 2016 has kicked off, and players are rocking fresh looks for the new year.

Roger Federer and Maria Sharapova have been wearing head-to-toe Nike for more than a decade. Rafael Nadal, who suffered his second career first-round loss, to fellow Spaniard Fernando Verdasco on Tuesday, has also been wearing Nike virtually his entire career.

At the 2015 U.S. Open, Murray — who signed an endorsement deal with Under Armour in January 2015 — wore Under Armour apparel with Adidas Barricade sneakers. Murray continued to wear Adidas until Under Armour created a tennis shoe that met his specifications. Murray now competes in Under Armour footwear.